Process for enriching and separating oxides of heavy...

Details Process for enriching and separating oxides of heavy... Process for enriching and separating oxides of heavy...

C - Chemistry, Metallurgy

01

B

23/285

C01B 5/02 (2006.01) B01D 59/30 (2006.01) C01B 4/00 (2006.01)

Patent

CA 1282938

25213-60 ABSTRACT OF THE DISCLOSURE A process for the enrichment and separation of oxides of heavy hydrogen isotopes from acid, aqueous solutions or other aqueous streams employs macrocyclic aminopolyether (APE) and organic cation exchange agents. The aqueous solution or the aqueous stream is mixed with at least one organic solvent which is miscible with water to form a liquid mixture. An organic acid cation exchange agent in the H-form is charged with a protonized APE to form a solid phase. The liquid mixture is brought into contact with the solid phase to bring about the enrichment of the heavy hydrogen isotope on the solid phase at a low temperture. The heavy hydrogen isotope from the solid phase is then released at a temperature that is higher by between 30°K and 150°K than the temperature at which the enrichment occurred. In such a way of deuteriumoxide/tritiumoxide enriched or depleted solutions are passing one after another some of those stages, containing cation exchanger loaded by APE.

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